import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/register', '/managesurvey', '/Teachersurvey','/HeadHeacher','/TeacherList','/TeacherUpdate' ] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
    // start progress bar
    NProgress.start()

    // 获取网站基本信息
    let siteData = store.getters.siteData
    if (!siteData.siteName) {
        siteData = await store.dispatch('settings/getSite')
    }

    // 页面标题
    document.title = getPageTitle(siteData.siteName, to.meta.title)

    // 本地token
    const hasToken = getToken()

    if (hasToken) {
        if (to.path === '/login') {
            next({ path: '/' })
            NProgress.done()
        } else {
            const hasRoles = store.getters.roles && store.getters.roles.length > 0
            if (hasRoles) {
                next()
            } else {
                try {
                    // 读取用户权限
                    const { roles } = await store.dispatch('user/getInfo')
                    const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
                    router.addRoutes(accessRoutes)
                    next({...to, replace: true })
                } catch (error) {
                    // 出错注销
                    await store.dispatch('user/resetToken')
                    Message.error(error || 'Has Error')
                    next(`/login?redirect=${to.path}`)
                    NProgress.done()
                }
            }
        }
    } else {
        // 排除白名单
        if (whiteList.indexOf(to.path) !== -1) {
            next()
        } else {
            // 跳转到登录页面
            next(`/login?redirect=${to.path}`)
            NProgress.done()
        }
    }
})

router.afterEach(() => {
    // finish progress bar
    NProgress.done()
})